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Encyclopedia > Psychology

Psychology is an academic and applied discipline involving the analytic and scientific study of mental processes and behavior. Psychologists study such phenomena as perception, cognition, emotion, personality, behavior, and interpersonal relationships. Psychology also refers to the application of such knowledge to various spheres of human activity including issues related to daily life—e.g. family, education, and work—and the treatment of mental health problems. Psychology attempts to understand the role these functions play in social behavior and in social dynamics, while incorporating the underlying physiological and neurological processes into its conceptions of mental functioning. Psychology includes many sub-fields of study and application concerned with such areas as human development, sports, health, industry, media, law, and transpersonal psychology. For the science, see Psychology. ... Phycology (or algology) (from Greek: φύκος, phykos, seaweed; and λόγος, logos, knowledge), a subdiscipline of botany, is the scientific study of algae. ... Plato is credited with the inception of academia: the body of knowledge, its development and transmission across generations. ... For the song by 311, see Grassroots Applied science is the exact science of applying knowledge from one or more natural scientific fields to practical problems. ... Today psychoanalysis comprises several interlocking theories concerning the functioning of the mind. ... A magnet levitating above a high-temperature superconductor demonstrates the Meissner effect. ... Mental functions and cognitive processes are terms often used interchangeably (although not always correctly so, the term cognitive tends to have specific implications - see cognitive and cognitivism) to mean such functions or processes as perception, introspection, memory, imagination, conception, belief, reasoning, volition, and emotion--in other words, all the different... This article does not cite any references or sources. ... In psychology and the cognitive sciences, perception is the process of acquiring, interpreting, selecting, and organizing sensory information. ... Look up Cognition in Wiktionary, the free dictionary. ... For other uses, see Emotion (disambiguation). ... Personality psychology is a branch of psychology which studies personality and individual differences. ... This article does not cite any references or sources. ... An interpersonal relationship is some relationship or connection between two people. ... For other uses, see Knowledge (disambiguation). ... For the Björk song, see Human Behaviour Human behavior is the collection of behaviors exhibited by human beings and influenced by culture, attitudes, emotions, values, ethics, authority, rapport, hypnosis, persuasion, coercion and/or genetics. ... Everyday life is the sum total of every aspect of common human life as it is routinely lived. ... For other uses, see Family (disambiguation). ... Look up work in Wiktionary, the free dictionary. ... The Greek letter Psi is often used as a symbol of psychology. ... Mental health is a term used to describe either a level of cognitive or emotional wellbeing or an absence of a mental disorder. ... This article does not cite any references or sources. ... Neuropsychology is a branch of psychology and neurology that aims to understand how the structure and function of the brain relate to specific psychological processes and overt behaviors. ... This article includes a list of works cited or a list of external links, but its sources remain unclear because it lacks in-text citations. ... Legal psychology involves the application of empirical psychological research to legal institutions and people who come into contact with the law. ... Transpersonal psychology is a school of psychology that studies the transpersonal, the transcendent or spiritual aspects of the human mind. ...

Contents

History

Main article: History of psychology

The history of psychology as a scholarly study of the mind and behavior dates, in Europe, back to the Late Middle Ages. ...

Philosophical and scientific roots

The study of psychology in a philosophical context dates back to the ancient civilizations of Egypt, Greece, China and India. Psychology began adopting a more clinical[1] and experimental[2] approach under medieval Muslim psychologists and physicians, who built psychiatric hospitals for such purposes.[3] For other uses, see Philosophy (disambiguation). ... The Greek letter Psi is often used as a symbol of psychology. ... Experimental psychology approaches psychology as one of the natural sciences, and therefore assumes that it is susceptible to the experimental method. ... In the history of medicine, Islamic medicine or Arabic medicine refers to medicine developed in the medieval Islamic civilisation and written in Arabic, the lingua franca of the Islamic civilization. ... A psychiatric hospital (also called, at various places and times, mental hospital or mental ward, historically often asylum, lunatic asylum, or madhouse), is a hospital specialising in the treatment of persons with mental illness. ...


Though the use of psychological experimentation dates back to Alhazen's Book of Optics in 1021,[2][4] psychology as an independent experimental field of study began in 1879, when Wilhelm Wundt founded the first laboratory dedicated exclusively to psychological research at Leipzig University in Germany, for which Wundt is known as the "father of psychology".[5] 1879 is thus sometimes regarded as the "birthdate" of psychology. The American philosopher William James published his seminal book, Principles of Psychology,[6] in 1890, while laying the foundations for many of the questions that psychologists would focus on for years to come. Other important early contributors to the field include Hermann Ebbinghaus (1850–1909), a pioneer in the experimental study of memory at the University of Berlin; and the Russian physiologist Ivan Pavlov (1849-1936), who investigated the learning process now referred to as classical conditioning. In the scientific method, an experiment (Latin: ex- periri, of (or from) trying) is a set of observations performed in the context of solving a particular problem or question, to retain or falsify a hypothesis or research concerning phenomena. ... This article is about the scientist. ... The title page of a 1572 Latin manuscript of Ibn al-Haythams Book of Optics The Book of Optics (Arabic: Kitab al-Manazir, Latin: De Aspectibus or Perspectiva) was a seven volume treatise on optics written by the Iraqi Muslim scientist Ibn al-Haytham (Latinized as Alhacen or Alhazen... Wilhelm Maximilian Wundt (August 16, 1832-August 31, 1920) was a German psychologist, physiologist, and professor who is, along with William James, regarded as the father of psychology. ... The University of Leipzig is one of the oldest universities in Europe. ... This article needs additional references or sources for verification. ... The Principles of Psychology is a monumental text in the history of psychology, written by William James and published in 1890. ... A psychologist is an expert in psychology, the systematic investigation of the human body, including behavior, cognition, and affect. ... Hermann Ebbinghaus (January 24, 1850–February 26, 1909) was a German psychologist who pioneered the experimental study of memory, and is known for his discovery of the forgetting curve and the spacing effect as well as his research on the learning curve. ... For other uses, see Memory (disambiguation). ... There is no institution called the University of Berlin, but there are four universities in Berlin, Germany: Humboldt University of Berlin (Humboldt-Universität zu Berlin) Technical University of Berlin (Technische Universität Berlin) Free University of Berlin (Freie Universität Berlin) Berlin University of the Arts (Universität der Künste Berlin) This is... This article or section does not cite any references or sources. ... For other uses, see Pavlov (disambiguation). ... Learning is the acquisition and development of memories and behaviors, including skills, knowledge, understanding, values, and wisdom. ... Classical Conditioning (also Pavlovian or Respondent Conditioning) is a form of associative learning that was first demonstrated by Ivan Pavlov. ...


Psychoanalysis

Auguste Rodin's The Thinker, bronze cast by Alexis Rudier, Laeken Cemetery, Brussels, Belgium.
Auguste Rodin's The Thinker, bronze cast by Alexis Rudier, Laeken Cemetery, Brussels, Belgium.

During the 1890s, the Austrian physician Sigmund Freud developed a method of psychotherapy known as psychoanalysis. Freud's understanding of the mind was largely based on interpretive methods, introspection and clinical observations, and was focused in particular on resolving unconscious conflict, mental distress and psychopathology. Freud's theories became very well-known, largely because they tackled subjects such as sexuality, repression, and the unconscious mind as general aspects of psychological development. These were largely considered taboo subjects at the time, and Freud provided a catalyst for them to be openly discussed in polite society. Freud also had a significant influence on Carl Jung, whose analytical psychology became an alternative form of depth psychology. Philosopher Karl Popper argued that Freud's psychoanalytic theories were presented in untestable form.[7] Due to their subjective nature, Freud's theories are often of primarily historical interest to many modern academic psychology departments. Followers of Freud who accept the basic ideas of psychoanalysis but alter it in some way are called neo-Freudians. Modification of Jung's theories has led to the archetypal and process-oriented schools of psychological thought. ImageMetadata File history File links Download high resolution version (562x750, 82 KB) Auguste Rodin, The Thinker (1889). ... ImageMetadata File history File links Download high resolution version (562x750, 82 KB) Auguste Rodin, The Thinker (1889). ... Auguste Rodin - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... Laeken (French: Laeken, Dutch: Laken) is a residential suburb in north-east Brussels, Belgium. ... This article is about the settlement itself. ... Sigmund Freud (IPA: ), born Sigismund Schlomo Freud (May 6, 1856 – September 23, 1939), was an Austrian neurologist and psychiatrist who founded the psychoanalytic school of psychology. ... Psychotherapy is an interpersonal, relational intervention used by trained psychotherapists to aid clients in problems of living. ... Today psychoanalysis comprises several interlocking theories concerning the functioning of the mind. ... This article is about the psychological process of introspecting. ... Psychopathology is a term which refers to either the study of mental illness or mental distress, or the manifestation of behaviors and experiences which may be indicative of mental illness or psychological impairment. ... This article is about human sexual perceptions. ... Psychological repression, or simply repression, is the psychological act of excluding desires and impulses (wishes, fantasies or feelings) from ones consciousness and attempting to hold or subdue them in the subconscious. ... This article does not adequately cite its references or sources. ... This article is about cultural prohibitions in general; for other uses, see Taboo (disambiguation). ... Jung redirects here. ... Analytical psychology (or Jungian psychology) refers to the school of psychology originating from the ideas of Swiss psychiatrist Carl Jung, and then advanced by his students and other thinkers who followed in his tradition. ... Depth psychology is a broad term that refers to any psychological approach examining the depth (the hidden or deeper parts) of human experience. ... Sir Karl Raimund Popper (July 28, 1902 â€“ September 17, 1994) was an Austrian and British[1] philosopher and a professor at the London School of Economics. ... Falsifiability (or refutability or testability) is the logical possibility that an assertion can be shown false by an observation or a physical experiment. ... The Neo-Freudian psychologists were those followers of Sigmund Freud who accepted the basic tenets of his theory of psychoanalysis but altered it in some way. ... Archetypal psychology was developed by James Hillman in the second half of the 20th century. ... Process Oriented Psychology refers to a body of theory and practice that encompasses a broad range of psychotherapeutic, personal growth, and group process applications. ...


Behaviorism

Partly in opposition to the subjective and introspective nature of Freudian psychodynamics, and its focus on the recollection of childhood experiences, during the early decades of the 20th century, behaviorism gained popularity as a guiding psychological theory. Founded by John B. Watson and embraced and extended by Edward Thorndike, Clark L. Hull, Edward C. Tolman, and later B.F. Skinner, behaviorism was grounded in animal experimentation in the laboratory. Behaviorists shared the view that the subject matter of psychology should be operationalized with standardized procedures which led psychology to focus on behavior, not the mind or consciousness.[8] They doubted the validity of introspection for studying internal mental states such as feelings, sensations, beliefs, desires, and other unobservable entities.[8] In "Psychology as the Behaviorist Views It" (1913),[9] Watson argued that psychology "is a purely objective experimental branch of natural science," that "introspection forms no essential part of its methods," and that "the behaviorist recognizes no dividing line between man and brute." Skinner rejected hypothesis testing as a research method, considering it to be too conducive to speculative theories that would promote useless research and stifle good research.[10] Psychodynamic psychotherapy is a type of psychotherapy, usually meeting about once or twice a week. ... Behaviorism (also called learning perspective) is a philosophy of psychology based on the proposition that all things which organisms do — including acting, thinking and feeling—can and should be regarded as behaviors. ... John Broadus Watson (January 9, 1878–September 25, 1958) was an American psychologist who established the psychological school of behaviorism, after doing research on animal behavior. ... Edward Lee Thorndike (August 31, 1874 - August 9, 1949) was an American psychologist who spent nearly his entire career at Teachers College, Columbia University. ... Clark Leonard Hull (1884-1952) was an influential American psychologist and behaviorist who sought to explain learning and motivation by scientific laws of behavior. ... Edward Chace Tolman (1886 - 1959) was an American psychologist. ... Burrhus Frederic Skinner (March 20, 1904 _ August 18, 1990) was an American psychologist and author. ... Feelings are most generally INFORMATION that biological beings are capable of sensing in the situations they are in, exposed to or depending on. ... In psychology, sensation is the first stage in the chain of biochemical and neurologic events that begins with the impinging of a stimulus upon a sensory organ, and leads to perception, the sort of mental state that is reflected in statements like I see a uniformly blue wall. ... For other uses, see Believe. ...


Behaviorism was the dominant paradigm in American psychology throughout the first half of the 20th century. However, the modern field of psychology is largely dominated by cognitive psychology. Linguist Noam Chomsky helped spark the cognitive revolution in psychology through his review of B. F. Skinner's Verbal Behavior, in which he challenged the behaviorist approach to the study of behavior and language dominant in the 1950s. Chomsky was highly critical of what he considered arbitrary notions of 'stimulus', 'response' and 'reinforcement' which Skinner borrowed from animal experiments in the laboratory. Chomsky argued that Skinner's notions could only be applied to complex human behavior, such as language acquisition, in a vague and superficial manner. Chomsky emphasized that research and analysis must not ignore the contribution of the child in the acquisition of language and proposed that humans are born with an natural ability to acquire language.[11] Work most associated with psychologist Albert Bandura, who initiated and studied social learning theory, showed that children could learn aggression from a role model through observational learning, without any change in overt behavior, and so must be accounted for by internal processes.[12] Cognitive Psychology is the school of psychology that examines internal mental processes such as problem solving, memory, and language. ... Avram Noam Chomsky (born December 7, 1928) is an American linguist, philosopher, political activist, author and lecturer. ... The cognitive revolution is a name for an intellectual movement in the 1950s that combined new thinking in psychology, anthropology and linguistics with the nascent fields of computer science and neuroscience. ... Verbal Behavior (1957) is a book written by B.F. Skinner in which the author presents his ideas on language. ... The Language Acquisition Device (LAD) is a postulated organ of the brain that is supposed to function as a congenital device for learning symbolic language (ie. ... Albert Bandura (born 4 20 1925 in Mundare, Canada), a Ball Licker, is best known for his work on nut sack and on self-efficacy. ... For the article on social learning theory in psychology and education see social cognitivism. ... Observational learning or social learning is learning that occurs as a function of observing, retaining and replicating behavior observed in others. ...


Existentialism and humanism

Humanistic psychology was developed in the 1950s in reaction to both behaviorism and psychoanalysis, arising largely from the existential philosophy of writers such as Jean-Paul Sartre and Søren Kierkegaard. By using phenomenology, intersubjectivity and first-person categories, the humanistic approach seeks to glimpse the whole person--not just the fragmented parts of the personality or cognitive functioning.[13] Humanism focuses on uniquely human issues and fundamental issues of life, such as self-identity, death, aloneness, freedom, and meaning. Some of the founding theorists behind this school of thought were Abraham Maslow who formulated a hierarchy of human needs, Carl Rogers who created and developed Client-centered therapy, and Fritz Perls who helped create and develop Gestalt therapy. It became so influential as to be called the "third force" within psychology (along with behaviorism and psychoanalysis).[14] Humanistic psychology is a school of psychology that emerged in the 1950s in reaction to both behaviorism and psychoanalysis. ... Existentialism is a philosophical movement emphasizing individualism, individual freedom, and subjectivity. ... Jean-Paul Charles Aymard Sartre (June 21, 1905 – April 15, 1980), normally known simply as Jean-Paul Sartre (pronounced: ), was a French existentialist philosopher and pioneer, dramatist and screenwriter, novelist and critic. ... Søren Aabye Kierkegaard (pronounced , but usually Anglicized as ;  ) (5 May 1813 – 11 November 1855) was a prolific 19th century Danish philosopher and theologian. ... Use of the word phenomenology in modern science is described in the separate article phenomenology (science). ... The term Intersubjectivity is used in three ways. ... Abraham (Harold) Maslow (April 1, 1908 – June 8, 1970) was an American psychologist. ... Maslows hierarchy of needs is a theory in psychology that Abraham Maslow proposed in his 1943 paper A Theory of Human Motivation,[1] which he subsequently extended to include his observations of humans innate curiosity. ... For other persons named Carl Rogers, see Carl Rogers (disambiguation). ... Client-Centered Therapy or Person-Centered Therapy, now considered a founding work in the humanistic school of psychotherapies, began formally with Carl Ransom Rogers (born January 8, 1902 in Oak Park, Illinois, died February 4, 1987), broadly considered the most influenctial US psychotherapist in the short history of this field. ... Friedrich (Frederick) Salomon Perls (July 8 1893, Berlin - March 14, 1970, Chicago), better known as Fritz Perls, was a noted German-born psychiatrist and psychotherapist of Jewish descent. ... Gestalt Therapy is an existential and experiential psychotherapy that focuses on the individuals experience in the present moment, the therapist-client relationship, the environmental and social contexts in which these things take place, and the self-regulating adjustments people make as a result of the overall situation. ...


Cognitivism

As computer technology proliferated, so emerged the metaphor of mental function as information processing. This, combined with a scientific approach to studying the mind, as well as a belief in internal mental states, led to the rise of cognitivism as a popular model of the mind. Cognitive psychology differs from other psychological perspectives in two key ways. First, it accepts the use of the scientific method, and generally rejects introspection as a method of investigation, unlike symbol-driven approaches such as Freudian psychodynamics. Second, it explicitly acknowledges the existence of internal mental states (such as belief, desire and motivation), whereas behaviorism does not. In general, information processing is the changing (processing) of information in any manner detectable by an observer. ... In psychology, cognitivism is a theoretical approach to understanding the mind, which argues that mental function can be understood by quantitative, positivist and scientific methods, and that such functions can be described as information processing models. ...


Links between brain and nervous system function also became understood, partly due to the experimental work of people such as Charles Sherrington and Donald Hebb, and partly due to studies of people with brain injury (see cognitive neuropsychology). With the development of technologies for measuring brain function, neuropsychology and cognitive neuroscience have become increasingly active areas of contemporary psychology. Cognitive psychology has been subsumed along with other disciplines, such as philosophy of mind, computer science, and neuroscience, under the umbrella discipline of cognitive science. For other uses, see Brain (disambiguation). ... The nervous system is a highly specialized network whose principal components are nerves called neurons. ... Sherrington is considered one of the fathers of neuroscience. ... This article needs additional references or sources for verification. ... Brain damage or brain injury is the destruction or degeneration of brain cells. ... == ISABEL IS COOL AND SHE LOVES COGNITIVE NEUROPSYCHOLOGY!!!!!!!!! == Cognitive neuropsychology is a branch of neuropsychology that aims to understand how the structure and function of the brain relates to specific psychological processes. ... Neuropsychology is a branch of psychology and neurology that aims to understand how the structure and function of the brain relate to specific psychological processes and overt behaviors. ... The field of cognitive neuroscience concerns the scientific study of the neural mechanisms underlying cognition and is a branch of neuroscience. ... A phrenological mapping of the brain. ... Computer science, or computing science, is the study of the theoretical foundations of information and computation and their implementation and application in computer systems. ... Drawing of the cells in the chicken cerebellum by S. Ramón y Cajal Neuroscience is a field that is devoted to the scientific study of the nervous system. ... Cognitive science is usually defined as the scientific study either of mind or of intelligence (e. ...


Principles

Mind and brain

Psychology describes and attempts to explain consciousness, behavior, and social interaction. Empirical psychology is primarily devoted to describing human experience and behavior as it actually occurs. Since the 1980s, psychology has begun to examine the relationship between consciousness and the brain or nervous system. It is still not clear how these interact: does consciousness determine brain states or do brain states determine consciousness--or are both going on in various ways? Or, is consciousness some sort of complicated 'illusion' that bears no direct relationship to neural processes? Perhaps to understand this, it is necessary to define "consciousness" and "brain state". An understanding of brain function is increasingly being included in psychological theory and practice, particularly in areas such as artificial intelligence, neuropsychology, and cognitive neuroscience. For other uses, see Brain (disambiguation). ... The nervous system is a highly specialized network whose principal components are nerves called neurons. ... René Descartes illustration of mind/body dualism. ... This section may require cleanup to meet Wikipedias quality standards. ... In philosophy, materialism is that form of physicalism which holds that the only thing that can truly be said to exist is matter; that fundamentally, all things are composed of material and all phenomena are the result of material interactions; that matter is the only substance. ... René Descartes illustration of dualism. ... Consciousness is a quality of the mind generally regarded to comprise qualities such as subjectivity, self-awareness, sentience, sapience, and the ability to perceive the relationship between oneself and ones environment. ... Consciousness is a quality of the mind generally regarded to comprise qualities such as subjectivity, self-awareness, sentience, sapience, and the ability to perceive the relationship between oneself and ones environment. ... AI redirects here. ... Neuropsychology is a branch of psychology and neurology that aims to understand how the structure and function of the brain relate to specific psychological processes and overt behaviors. ... The field of cognitive neuroscience concerns the scientific study of the neural mechanisms underlying cognition and is a branch of neuroscience. ...


Schools of thought

Various schools of thought have argued for a particular model to be used as a guiding theory by which all, or the majority, of human behavior can be explained. The popularity of these has waxed and waned over time. Some psychologists may think of themselves as adherents to a particular school of thought and reject the others, although most consider each as an approach to understanding the mind, and not necessarily as mutually exclusive theories. On the basis of Tinbergen's four questions a framework of reference or "periodic table" of all fields of psychological research can be established (including anthropological research and humanities). The psychological schools are the great classical theories of psychology. ... A psychologist is an expert in psychology, the systematic investigation of the human body, including behavior, cognition, and affect. ... When asked questions of animal behavior such as why animals see, even grade school children can answer that vision helps animals find food and avoid danger. ... The Periodic Table redirects here. ...


Subfields

Psychology encompasses a vast domain, and includes many different approaches to the study of mental processes and behavior. Below are the major areas of inquiry that comprise psychology, divided into fields of research psychology and fields of applied psychology. A comprehensive list of the sub-fields and areas within psychology can be found at the list of psychological topics and list of psychology disciplines. This page aims to list articles related to psychology. ... These are some of the sub-fields within the field of psychology: Abnormal psychology Activity theory Analytical psychology Applied psychology Asian Psychology Behavior analysis Behavioural medicine Behavioural psychology Biobehavioural health Biological psychology Biopsychology Cognitive neuropsychology Cognitive psychology Cognitive neuroscience Community psychology Comparative psychology Clinical psychology Counselling psychology Critical psychology Developmental...


Fields of basic research

Research psychology encompasses the study of behavior for use in academic settings, and contains numerous areas: abnormal psychology, biological psychology, cognitive psychology, comparative psychology, developmental psychology, health psychology, personality psychology, social psychology and others. Research psychology is contrasted with applied psychology. For the suburb of Melbourne, Australia, see Research, Victoria. ... In the broadest sense qualitative research is research which uses only dichotomous data — that is, data which can take only the values 0 (zero) and 1 (one). ... Quantitative psychological research is psychological research which performs statistical estimation or statistical inference. ... Plato is credited with the inception of academia: the body of knowledge, its development and transmission across generations. ... Abnormal psychology is the scientific study of abnormal behavior in order to describe, predict, explain, and change abnormal patterns of functioning. ... means basic pussy and the dick In psychology, biological psychology or psychobiology[1] is the application of the principles of biology to the study of mental processes and behavior. ... Cognitive Psychology is the school of psychology that examines internal mental processes such as problem solving, memory, and language. ... A brain of a cat Psychologists and scientists do not always agree on what should be considered Comparative Psychology. ... This article includes a list of works cited or a list of external links, but its sources remain unclear because it lacks in-text citations. ... Health psychology concerns itself with understanding how biology, behavior, and social context influence health and illness. ... Personality psychology is a branch of psychology which studies personality and individual differences. ... Social psychology is the scientific study of how peoples thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others (Allport, 1985). ... The basic premise of applied psychology is the use of psychological principles and theories to overcome practical problems in other fields, such as business management, product design, ergonomics, nutrition, law and clinical medicine. ...


Abnormal psychology

Main article: Abnormal psychology

Abnormal psychology is the study of abnormal behavior in order to describe, predict, explain, and change abnormal patterns of functioning. Abnormal psychology studies the nature of psychopathology and its causes, and this knowledge is applied in clinical psychology to treat a patient with psychological disorders. Abnormal psychology is the scientific study of abnormal behavior in order to describe, predict, explain, and change abnormal patterns of functioning. ... Abnormal psychology is the scientific study of abnormal behavior in order to describe, predict, explain, and change abnormal patterns of functioning. ... Abnormality is a subjectively defined characteristic, assigned to those with rare or dysfunctional conditions. ... Psychopathology is a term which refers to either the study of mental illness or mental distress, or the manifestation of behaviors and experiences which may be indicative of mental illness or psychological impairment. ... The Greek letter Psi is often used as a symbol of psychology. ...


In the study of abnormal behavior, it can be difficult to define the line between which behaviors are considered normal and which are not. In general, abnormal behaviors must be maladaptive and cause an individual subjective discomfort (signs of emotional distress). Generally, abnormal behaviors are classified as:

  • Abnormal as in "infrequent" in relation to the overall population.
  • Abnormal as in "maladaptive". The behavior fails to promote well being, growth, and fulfillment of a person.
  • Abnormal as in "deviant". The behavior is not socially acceptable.
  • Abnormal as in "unjustifiable". The behavior that cannot be rationalized.

Biological psychology

Image of the human brain. The arrow indicates the position of the hypothalamus.
Image of the human brain. The arrow indicates the position of the hypothalamus.

Biological psychology is the scientific study of the biological bases of behavior and mental states. Because all behavior is controlled by the central nervous system, it is sensible to study how the brain functions in order to understand behavior. This is the approach taken in behavioral neuroscience, cognitive neuroscience, and neuropsychology. Neuropsychology is the branch of psychology that aims to understand how the structure and function of the 'brain' relate to specific behavioral and psychological processes. Often neuropsychologists are employed as scientists to advance scientific or medical knowledge. Neuropsychology is particularly concerned with the understanding of brain injury in an attempt to work out normal psychological function. means basic pussy and the dick In psychology, biological psychology or psychobiology[1] is the application of the principles of biology to the study of mental processes and behavior. ... Neuropsychology is a branch of psychology and neurology that aims to understand how the structure and function of the brain relate to specific psychological processes and overt behaviors. ... Physiological psychology is sometimes related to psychiatry, and in fact may end up becoming the parent branch which contains psychiatry. ... The field of cognitive neuroscience concerns the scientific study of the neural mechanisms underlying cognition and is a branch of neuroscience. ... Evolutionary psychology (EP) attempts to explain mental and psychological traits—such as memory, perception, or language—as adaptations, that is, as the functional products of natural selection or sexual selection. ... Image File history File links Hypothalamus. ... Image File history File links Hypothalamus. ... The hypothalamus links the nervous system to the endocrine system via the pituitary gland (hypophysis). ... For other uses, see Brain (disambiguation). ... Behavioral neuroscience approach. ... The field of cognitive neuroscience concerns the scientific study of the neural mechanisms underlying cognition and is a branch of neuroscience. ... Neuropsychology is a branch of psychology and neurology that aims to understand how the structure and function of the brain relate to specific psychological processes and overt behaviors. ...


The approach of cognitive neuroscience to studying the link between brain and behavior is to use neuroimaging tools, such as to observe which areas of the brain are active during a particular task.


Cognitive psychology

Main article: Cognitive psychology

The nature of thought is another core interest in psychology. Cognitive psychology studies cognition, the mental processes underlying behavior. It uses information processing as a framework for understanding the mind. Perception, learning, problem solving, memory, attention, language and emotion are all well researched areas. Cognitive psychology is associated with a school of thought known as cognitivism, whose adherents argue for an information processing model of mental function, informed by positivism and experimental psychology. Cognitive Psychology is the school of psychology that examines internal mental processes such as problem solving, memory, and language. ... Personification of thought (Greek Εννοια) in Celsus Library in Ephesos, Turkey Thought or thinking is a mental process which allows beings to model the world, and so to deal with it effectively according to their goals, plans, ends and desires. ... Cognitive Psychology is the school of psychology that examines internal mental processes such as problem solving, memory, and language. ... Look up Cognition in Wiktionary, the free dictionary. ... Mental functions and cognitive processes are terms often used interchangeably (although not always correctly so, the term cognitive tends to have specific implications - see cognitive and cognitivism) to mean such functions or processes as perception, introspection, memory, imagination, conception, belief, reasoning, volition, and emotion--in other words, all the different... In general, information processing is the changing (processing) of information in any manner detectable by an observer. ... In psychology and the cognitive sciences, perception is the process of acquiring, interpreting, selecting, and organizing sensory information. ... Learning is the acquisition and development of memories and behaviors, including skills, knowledge, understanding, values, and wisdom. ... Problem solving forms part of thinking. ... For other uses, see Memory (disambiguation). ... This article is about psychological concept of attention. ... For other uses, see Emotion (disambiguation). ... In psychology, cognitivism is a theoretical approach to understanding the mind, which argues that mental function can be understood by quantitative, positivist and scientific methods, and that such functions can be described as information processing models. ... In general, information processing is the changing (processing) of information in any manner detectable by an observer. ... Positivism is a philosophy that states that the only authentic knowledge is knowledge that is based on actual sense experience. ... Experimental psychology approaches psychology as one of the natural sciences, and therefore assumes that it is susceptible to the experimental method. ...


Cognitive science is a conjoined enterprise of cognitive psychologists, neurobiologists, workers in artificial intelligence, logicians, linguists, and social scientists, and places a slightly greater emphasis on computational theory and formalization. Cognitive science is usually defined as the scientific study either of mind or of intelligence (e. ... Neurobiology is the study of cells of the nervous system and the organization of these cells into functional circuits that process information and mediate behavior. ... AI redirects here. ... Mathematical logic is a major area of mathematics, which grew out of symbolic logic. ... For the journal, see Linguistics (journal). ...


Both areas can use computational models to simulate phenomena of interest. Because mental events cannot directly be observed, computational models provide a tool for studying the functional organization of the mind. Such models give cognitive psychologists a way to study the "software" of mental processes independent of the "hardware" it runs on, be it the brain or a computer. This article is about computer modeling within a scientific medium. ...


Comparative psychology

Comparative psychology refers to the study of the behavior and mental life of animals other than human beings. It is related to disciplines outside of psychology that study animal behavior, such as ethology. Although the field of psychology is primarily concerned with humans, the behavior and mental processes of animals is also an important part of psychological research, either as a subject in its own right (e.g., animal cognition and ethology), or with strong emphasis about evolutionary links, and somewhat more controversially, as a way of gaining an insight into human psychology by means of comparison or via animal models of emotional and behavior systems as seen in neuroscience of psychology (e.g., affective neuroscience and social neuroscience). A brain of a cat Psychologists and scientists do not always agree on what should be considered Comparative Psychology. ... A brain of a cat Psychologists and scientists do not always agree on what should be considered Comparative Psychology. ... For other uses, see Animal (disambiguation). ... This article does not cite any references or sources. ... For other uses, see Animal (disambiguation). ... Animal cognition, is the title given to a modern approach to the mental capacities of animals other than humans. ... Affective neuroscience is the study of the neural mechanisms of emotion. ... Social neuroscience is a field of research that spans social psychology, neuroscience, and physiology. ...


Developmental psychology

Mainly focusing on the development of the human mind through the life span, developmental psychology seeks to understand how people come to perceive, understand, and act within the world and how these processes change as they age. This may focus on intellectual, cognitive, neural, social, or moral development. Researchers who study children use a number of unique research methods to make observations in natural settings or to engage them in experimental tasks. Such tasks often resemble specially designed games and activities that are both enjoyable for the child and scientifically useful, and researchers have even devised clever methods to study the mental processes of small infants. In addition to studying children, developmental psychologists also study aging and processes throughout the life span, especially at other times of rapid change (such as adolescence and old age). Urie Bronfenbrenner's theory of development in context (The Ecology of Human Development - ISBN 0-674-22456-6) is influential in this field, as are those mentioned in "Educational psychology" immediately below, as well as many others. Developmental psychologists draw on the full range of theorists in scientific psychology to inform their research. This article includes a list of works cited or a list of external links, but its sources remain unclear because it lacks in-text citations. ... This article includes a list of works cited or a list of external links, but its sources remain unclear because it lacks in-text citations. ... Kohlbergs stages of moral development were developed by Lawrence Kohlberg to explain the development of moral reasoning. ... Ageing or aging is the process of getting older. ... Urie Bronfenbrenner (April 29, 1917-September 25, 2005) was a renowned psychologist and a co-founder of the U.S. national Head Start program. ...


Personality psychology

Personality psychology studies enduring psychological patterns of behavior, thought and emotion, commonly called an individual's personality. Theories of personality vary between different psychological schools. Trait theories attempts to break personality down into a number of traits, by use of factor analysis. The number of traits have varied between theories. One of the first, and smallest, models was that of Hans Eysenck, which had three dimensions: extroversionintroversion, neuroticismemotional stability, and psychoticism. Raymond Cattell proposed a theory of 16 personality factors. The theory that has most empirical evidence behind it today may be the "Big Five" theory, proposed by Lewis Goldberg, and others. Personality psychology is a branch of psychology which studies personality and individual differences. ... Personality psychology is a branch of psychology which studies personality and individual differences. ... This article does not cite any references or sources. ... Personification of thought (Greek Εννοια) in Celsus Library in Ephesos, Turkey Thought or thinking is a mental process which allows beings to model the world, and so to deal with it effectively according to their goals, plans, ends and desires. ... For other uses, see Emotion (disambiguation). ... Trait theory is an approach to personality theory in psychology. ... Factor analysis is a statistical method used to explain variability among observed random variables in terms of fewer unobserved random variables called factors. ... Hans Eysenck Hans Jürgen Eysenck (March 4, 1916 - September 4, 1997) was an eminent psychologist, most remembered for his work on intelligence and personality, though he worked in a wide range of areas. ... The terms Introvert and Extrovert (originally spelled Extravert by Carl Jung, who invented the terms) are referred to as attitudes and show how a person orients and receives their energy. ... The terms Introvert and Extrovert (spelled Extravert by Carl Jung), were originally employed by Sigmund Freud and given significant amplification later by Jung. ... For the band, see Neurotic (band). ... For other uses, see Emotion (disambiguation). ... Psychoticism is one of the three traits used by the psychologist Hans Eysenck in his P-E-N model (psychoticism, extraversion and neuroticism) model of personality. ... Raymond Bernard Cattell (20 March 1905 - 2 February 1998) was a British and American psychologist who theorized the existence of fluid and crystallized intelligences to explain human cognitive ability. ... 16 PF is the standard abbreviation for the 16 Personality Factors multivariately-derived by psychologist Raymond Cattell. ... In psychology, the Big Five personality traits are five broad factors or dimensions of personality discovered through empirical research (Goldberg, 1993). ... This page is a candidate for speedy deletion. ...


A different, but well known approach to personality is that of Sigmund Freud, whose structural theory of personality divided personality into the ego, superego, and id. He utilized the principles of thermodynamics metaphorically to explain these three distinctive and interacting tripartite divisions. In 1923 Freud published the ground-breaking book: "The Ego and the Id" in which he named and identified the functioning psychodynamics of human personality. This theory has been used in modern psychology paradigms such as Transactional Analysis. However, Freud's theory of personality has been criticized by many, including many mainstream psychologists. Personality may refer to: // Personality psychology, a branch of psychology which studies personality and individual differences Personality development, the study of human personality development over time Personality disorders, a class of mental disorders that is characterized by long-lasting rigid patterns of thought and actions. ...